Move a subset of chrome/browser/chromeos/drive into components/drive

chrome/chrome_tests_unit.gypi

Index: chrome/chrome_tests_unit.gypi
diff --git a/chrome/chrome_tests_unit.gypi b/chrome/chrome_tests_unit.gypi
index e296d4bf9d96007994220099ec278319cd41466c..a816def6273df07057d198aaf8d62f64bb938bbc 100644
--- a/chrome/chrome_tests_unit.gypi
+++ b/chrome/chrome_tests_unit.gypi
@@ -1130,6 +1130,9 @@
       'renderer/resources/extensions/notifications_custom_bindings.gtestjs',
     ],
     'chrome_unit_tests_chromeos_sources': [
+      # TODO(lukasza): Move Drive tests outside of CrOS (crbug.com/498951).
+      '../components/drive/file_change_unittest.cc',
+      '../components/drive/local_file_reader_unittest.cc',
       'browser/chromeos/accessibility/magnification_manager_unittest.cc',
       'browser/chromeos/accessibility/spoken_feedback_event_rewriter_unittest.cc',
       'browser/chromeos/attestation/attestation_ca_client_unittest.cc',
@@ -1145,8 +1148,6 @@
       'browser/chromeos/drive/download_handler_unittest.cc',
       'browser/chromeos/drive/drive_file_stream_reader_unittest.cc',
       'browser/chromeos/drive/drive_integration_service_unittest.cc',
-      'browser/chromeos/drive/drive_test_util.cc',
-      'browser/chromeos/drive/drive_test_util.h',
       'browser/chromeos/drive/dummy_file_system.cc',
       'browser/chromeos/drive/dummy_file_system.h',
       'browser/chromeos/drive/fake_file_system.cc',
@@ -1155,7 +1156,6 @@
       'browser/chromeos/drive/fake_free_disk_space_getter.cc',
       'browser/chromeos/drive/fake_free_disk_space_getter.h',
       'browser/chromeos/drive/file_cache_unittest.cc',
-      'browser/chromeos/drive/file_change_unittest.cc',
       'browser/chromeos/drive/file_system/copy_operation_unittest.cc',
       'browser/chromeos/drive/file_system/create_directory_operation_unittest.cc',
       'browser/chromeos/drive/file_system/create_file_operation_unittest.cc',
@@ -1179,7 +1179,6 @@
       'browser/chromeos/drive/fileapi/webkit_file_stream_reader_impl_unittest.cc',
       'browser/chromeos/drive/job_queue_unittest.cc',
       'browser/chromeos/drive/job_scheduler_unittest.cc',
-      'browser/chromeos/drive/local_file_reader_unittest.cc',
       'browser/chromeos/drive/remove_stale_cache_files_unittest.cc',
       'browser/chromeos/drive/resource_entry_conversion_unittest.cc',
       'browser/chromeos/drive/resource_metadata_storage_unittest.cc',
@@ -2455,6 +2454,7 @@
           ],
           'dependencies': [
             '../ash/ash_resources.gyp:ash_resources',
+            '../components/components.gyp:drive_test_support',
             '../ui/chromeos/ui_chromeos.gyp:ui_chromeos_resources',
           ],
           'sources!': [